P bracket alignment

[oldgit]

......at least they are off and you get them on the bench.
Might be worth pricing up a couple of new clamps, they are not outrageously expensive , sorting those old clamps might be more trouble than they are worth. ?
Simply rotate shaft for decent surface for grub screw.
Those shaft ends look good enough to go into new clamps. Around £90.00 each.

 

[Neil_Y]

OK I'm biased slightly as I supply hard composite shaft bearings. But one way to check P bracket alignment is to get bearings made as a clearance in the carrier ( our normal approach and they are Lloyds approved) The hard Maritex composite bearings are made with a 0.05 to 0.15mm clearance in carrier/P bracket.
Set up the shaft so that it is chocked and central in P bracket. Now you can have a dry run installation, if P bracket is straight you'll be able to slide the bearing along the shaft and into the P bracket and turn it by hand. Once this is achieved you then bed the bearing on a layer of epoxy (low temp such as Araldite 2011)

 

[Restoration man]

......at least they are off and you get them on the bench.
Might be worth pricing up a couple of new clamps, they are not outrageously expensive , sorting those old clamps might be more trouble than they are worth. ?
Simply rotate shaft for decent surface for grub screw.
Those shaft ends look good enough to go into new clamps. Around £90.00 each.

The bolts I drilled out go into shallow holes in the shaft I’m yet to drill the remains of the bolt out of the shaft , I have looked at new clamps but can’t seem to see any that have the hole for the extra bolt ,?? I assume It’s some sort of failsafe incase the clamps come loose ???

 

[Restoration man]

OK I'm biased slightly as I supply hard composite shaft bearings. But one way to check P bracket alignment is to get bearings made as a clearance in the carrier ( our normal approach and they are Lloyds approved) The hard Maritex composite bearings are made with a 0.05 to 0.15mm clearance in carrier/P bracket.
Set up the shaft so that it is chocked and central in P bracket. Now you can have a dry run installation, if P bracket is straight you'll be able to slide the bearing along the shaft and into the P bracket and turn it by hand. Once this is achieved you then bed the bearing on a layer of epoxy (low temp such as Araldite 2011)
[/QUOTE

The bolts I drilled out go into shallow holes in the shaft I’m yet to drill the remains of the bolt out of the shaft , I have looked at new clamps but can’t seem to see any that have the hole for the extra bolt ,?? I assume It’s some sort of failsafe incase the clamps come loose ???

i had thought of doing something similar by getting some temporary nylon inserts made, one to go in the stern tube to keep shaft centralised in the stern tube and 2 to go in the p bracket , I was going to start by putting the first one in the stern tube then trial fitting the p bracket, and put one nylon bush in the front of the p bracket, then slide the shaft in and try fit the rear bush if doesn’t fit I will need to space out p bracket till fits and then poss fill and fair the hull so everything fits ok and then re align the engine , is this essentially what your taking about ?? Also what are these hard composite shaft bearings you sell ? Are they better than the normal rubber type ???

 

[colhel]

i had thought of doing something similar by getting some temporary nylon inserts made, one to go in the stern tube to keep shaft centralised in the stern tube and 2 to go in the p bracket , I was going to start by putting the first one in the stern tube then trial fitting the p bracket, and put one nylon bush in the front of the p bracket, then slide the shaft in and try fit the rear bush if doesn’t fit I will need to space out p bracket till fits and then poss fill and fair the hull so everything fits ok and then re align the engine , is this essentially what your taking about ?? Also what are these hard composite shaft bearings you sell ? Are they better than the normal rubber type ???

Thats what I did

The hard part was measuring the ID of the stern tube with the shaft in place

 

[Restoration man]

Thats what I didView attachment 112308View attachment 112307

The hard part was measuring the ID of the stern tube with the shaft in place

Thanks for the pics nice to know I’m. Going in the right direction ?I’ve got shaft out and I’m taking the stern tube out to re seal it and I’ve got the p bracket out so will drop the lot round to my local machinist and get to turn something up